It was a 4200K lamp, so not ideal, however was told that it would work just fine.

So what do i think of the two philips CFLs (PL-L 36W/865/4P) vs OSRAM HQI-TS NDL 70W after a couple of weeks of operation, well I think the CFLs win hands down !!! And, what do i base the assessment on, simply on the oxygen bubbles i see forming on leave when i use the CFLs vs the MHs in the same tank….

However the jury is still out on the MH vs CFL debate, since the above is not really a completely fair comparison. Why? Because, the MH is 4200K and the CFL are 6500K, i am still hunting for 6500K MH but no luck so far where i live…